Hemodynamic Relationships between the Pulmonary and the Bronchial Vascular Systems

　The effect of the changes in bronchial arterial flow on the pulmonary arterial flow, and vice versa, was studied in anes-thetized, thoracotomized dogs. Both pul-monary arterial flow and bronchial arterial flow were measured with two electromag-netic flowmeters simultaneously. The bron-chial arteries were separated from the systemic circulation and were perfused. The broneho-pulmonary anastomoses re-mained intact.